30025986421 has 2 divisors, whose sum is σ = 30025986422. Its totient is φ = 30025986420.

The previous prime is 30025986401. The next prime is 30025986427. The reversal of 30025986421 is 12468952003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24997191025 + 5028795396 = 158105^2 + 70914^2 .

It is a cyclic number.

It is not a de Polignac number, because 30025986421 - 2¹⁹ = 30025462133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30025986427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15012993210 + 15012993211.

It is an arithmetic number, because the mean of its divisors is an integer number (15012993211).

Almost surely, 2^30025986421 is an apocalyptic number.

It is an amenable number.

30025986421 is a deficient number, since it is larger than the sum of its proper divisors (1).

30025986421 is an equidigital number, since it uses as much as digits as its factorization.

30025986421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 30025986421 in words is "thirty billion, twenty-five million, nine hundred eighty-six thousand, four hundred twenty-one".